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TDR100

TDR100 (WavePT(),0,1,6001,4,1.0,251,9.5,5.0,0.3,0.085,1,0)

CallTable TDR_Wave()

MuxChan=7001

TDR100 (WavePT(),0,1,7001,4,1.0,251,9.5,5.0,0.3,0.085,1,0)

CallTable TDR_Wave()

MuxChan=8001

TDR100 (WavePT(),0,1,8001,4,1.0,251,9.5,5.0,0.3,0.085,1,0)

CallTable TDR_Wave()

Flag(2)=0 'reset state of Flag 2

SW12 (0 ) 'Switched 12V Low

endif 'EndIf ********************************

PortsConfig (&B00000111,&B00000000) 'configure SDM ports C1,C2,C3 as inputs

NextScan

EndProg

10. References

Bilskie, Jim. 1997. “Reducing Measurement Errors of Selected Soil Water

Sensors. Proceedings of the International Workshop on Characterization and

measurement of the hydraulic properties of unsaturated porous media. 387-

396.

Topp, G.C., J.L. Davis & A.P. Annan. 1980. “Electromagnetic determination

of soil water content: measurements in coaxial transmission lines,” Water

Resources Research, v. 16, No. 3:574-582.

Ledieu, J., P. De Ridder, P. De Clerck, and S. Dautrebande. 1986. “A method

of measuring soil moisture by time-domain reflectometry,” J. Hydrol.

88:319-

328.

Giese, K., and R. Tiemann. 1975. “Determination of the complex permittivity

from thin-sample time domain reflectometry, Improved analysis of the step

response waveform,” Adv. Molec. Relax. Processes

7:45-49

Rhoades, J.D., N.A. Manteghi, P.J. Shouse, and W.J. Alves. 1989. Soil

electrical conductivity and soil salinity: New formulations and calibrations.

Soil Sci Soc. Am. J. 53:433-439.

Rhoades, J.D., P.A.C. Raats, and R.J. Prather. 1976. Effects of liquid-phase

electrical conductivity, water content and surface conductivity on bulk soil

electrical conductivity. Soil Sci. Soc. Am. J. 40:651-655.

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